
import { ref } from 'vue'
import { getParkInfoAPI } from '@/api/bigscreen'


// 获取园区信息
const parkInfo = ref({})

const getParkInfo = async () => {
  const res = await getParkInfoAPI()
  parkInfo.value = res.data
}

// 2. 初始化柱状图
import * as echarts from 'echarts'


const barChart = ref(null)


const initBarChart = () => {

  const { parkIncome } = parkInfo.value


  const barOptions = {
    tooltip: {
      trigger: 'axis',
      axisPointer: {
        type: 'shadow',
      },
    },
    grid: {
      // 让图表占满容器
      top: '10px',
      left: '0px',
      right: '0px',
      bottom: '0px',
      containLabel: true,
    },
    xAxis: [
      {
        type: 'category',
        axisTick: {
          alignWithLabel: true,
          show: false,
        },
        data: parkIncome.xMonth,
      },
    ],
    yAxis: [
      {
        type: 'value',
        splitLine: {
          show: false,
        },
      },
    ],
    series: [
      {
        name: '园区年度收入',
        type: 'bar',
        barWidth: '10px',
        data: parkIncome.yIncome.map((item, index) => {
          const color =
            index % 2 === 0
              ? new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                { offset: 0.23, color: '#74c0f8' },
                { offset: 1, color: 'rgba(116,192,248,0.00)' },
              ])
              : new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                { offset: 0.23, color: '#ff7152' },
                { offset: 1, color: 'rgba(255,113,82,0.00)' },
              ])
          return { value: item, itemStyle: { color } }
        }),
      },
    ],
    textStyle: {
      color: '#B4C0CC',
    },
  }

  const myBarChart = echarts.init(barChart.value)
  myBarChart.setOption(barOptions)
}

// 3. 初始化饼图

const pieChart = ref(null)

const initPieChart = () => {
    const { parkIndustry } = parkInfo.value

    const pieOption = {
        color: [
          '#00B2FF', '#2CF2FF', '#892CFF', '#FF624D', '#FFCF54', '#86ECA2'],
        legend: {
          itemGap: 20,
          bottom: '0',
          icon: 'rect',
          itemHeight: 10, // 图例icon高度
          itemWidth: 10, // 图例icon宽度
          textStyle: {
            color: '#c6d1db',
          },
        },
        tooltip: {
          trigger: 'item'
        },
        series: [
          {
            name: '园区产业分析',
            type: 'pie',
            radius: ['55%', '60%'], // 设置内圈与外圈的半径使其呈现为环形
            center: ['50%', '40%'], // 圆心位置， 用于调整整个图的位置
            tooltip: {
              trigger: 'item',
              formatter: (params) => {
                return `${params.seriesName}</br><div style='display:flex;justify-content: space-between;'><div>${params.marker}${params.name}</div><div>${params.percent}%</div></div>`
              }
            },
            label: {
              show: false,
              position: 'center',
            },
            data: parkIndustry,
          },
        ],
    
      }
      const myPieChart = echarts.init(pieChart.value)
      myPieChart.setOption(pieOption)
}

export function useBigScreenMember() {
  return {
    parkInfo,
    getParkInfo,
    barChart,
    initBarChart,
    pieChart,
    initPieChart
  }
}
